Barrel Jack EPJ1 With Locking Nut and Washer

Color: Chrome

Material: Copper

Inside hole diameter:  1/4” (6.35mm)

Thread diameter: 11.8mm

Length without poles:  39.5mm

Total length including  poles: 48.5mm

 4 Pins Stereo  Jack (The shorter two pins are main conductor pins); Of course, you can use this  item as Mono Jack as well

Comes with nut and  washer